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The fossils that were considered as Devonian insects, such as Rhyniognatha hirsti [17] or Strudiella devonica [18] were later reconsidered that their affinities as insects are insufficient. [ 3 ] [ 19 ] But based on phylogenic study, the first insects probably appeared earlier, in the Silurian period, [ 16 ] from stem-group crustaceans like ...
A. Acanthaeschna victoria; Acizzia acaciaebaileyanae; Adexia; Aedes africanus; Aedes butleri; Aedes canadensis; Aedes japonicus; Aedes serratus; Aenictus aitkenii
Insect species (IUCN, 2016.1) 5993 extant species have been evaluated; 4291 of those are fully assessed [a] 3144 are not threatened at present [b] 1146 to 2848 are threatened [c] 59 to 105 are extinct or extinct in the wild: 58 extinct (EX) species [d] 1 extinct in the wild (EW) 46 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)]
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Globally, averages of these predictions estimate there are around 1.5 million beetle species and 5.5 million insect species, with around 1 million insect species currently found and described. [3] Between 950,000–1,000,000 of all described animal species are considered insects, so over 50% of all described eukaryotes (1.8 million species) are ...
1800–1700 BC, Minoan jewellery, Malia, Crete: two golden bees over a honey comb Entomology, the scientific study of insects and closely related terrestrial arthropods, has been impelled by the necessity of societies to protect themselves from insect-borne diseases, crop losses to pest insects, and insect-related discomfort, as well as by people's natural curiosity.
These feelings were most pronounced in areas directly or harshly affected by the war where centuries-old royal dynasties were toppled, such as the Weimar Republic (1918-1933), Russian Civil War (1917-1923), and the successor states of Austria-Hungary.
Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants. Over 150,000 living species of Hymenoptera have been described, [2] [3] in addition to over 2,000 extinct ones. [4] Many of the species are parasitic. Females typically have a special ovipositor for inserting eggs into hosts or places that are otherwise ...